Global warming has slightly slowed the Earth’s rotation — and it could affect how we measure time. A study published Wednesday found that the melting of polar ice — an accelerating trend driven ...

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The new study provides unambiguous evidence that the inner core began to decrease its speed around 2010, moving slower than the Earth's surface. USC scientists have proven that the Earth's inner core ...

Earth's changing spin is causing it to rotate slightly faster than before, which may lead to the subtraction a second from clocks around 2029. This phenomenon, while not catastrophic, is unprecedented ...

Earth completed its rotation 1.33 milliseconds earlier than usual on Tuesday, August 5, 2025, making it one of the shortest days of the year at 86,399.99867 seconds long. While this fraction of a ...

A study published in Nature Geoscience suggests that the gradual slowing of Earth’s rotation over billions of years may have played a key role in one of the most profound shifts in the planet’s ...

The Earth is always in motion. It spins and it orbits nonstop. While this may feel static, our planet has been subtly changing tempo over billions of years. What was once a fast-spinning world with ...

WASHINGTON — Earth’s changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second. For the first time in history, world ...

(CNN) — Deep inside Earth is a solid metal ball that rotates independently of our spinning planet, like a top whirling around inside a bigger top, shrouded in mystery. This inner core has intrigued ...

A new study has determined that the inner core of our planet is slowing down, or backtracking, relative to the surface of the planet. The findings have been reported in Nature, although the ...

One promising model proposed in 2023 described an inner core that in the past had spun faster than Earth itself, but was now spinning slower. For a while, the scientists reported, the core's rotation ...